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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 20 September 2026

Tonight and Monday.

Strong wind warning in effect.

Wind west 10 to 15 knots diminishing to light early this evening then increasing to west 10 to 15 near noon Monday. Wind increasing to west 15 to 25 Monday afternoon.

Showers ending Monday afternoon.

Waves

Issued 03:00 PM EDT 20 September 2026
Tonight and Monday. Seas 1 metre or less building to 1 to 2 Monday evening.

Extended Forecast

Issued 06:00 PM EDT 20 September 2026
Tuesday Wind northwest 15 knots.
Wednesday Wind westerly 15 knots increasing to southwest 15 to 25.
Thursday Wind southwest 15 to 20 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Grand Manan New Carlisle Pointe-au-Père Fundy Park (Alma) Port Menier Miramichi Île Bicquette Charlo Cap-Chat Bathurst Airport CFB Bagotville Jonquière Mistook Normandin Roberval Airport Île-d'Orléans - Quai de St-Jean Deschambault North Bay Airport Beauport L'Isle-aux-Grues Bas Caraquet Lake Nipissing - 45152 Pointe-des-Monts L'Assomption Baie-Comeau Airport Saint-Anicet Cap-Rouge Sainte-Anne-de-Bellevue Lac Memphrémagog Montréal Metropolitain Airport Île Rouge Montréal-Trudeau Int'l Airport Lac Saint-Pierre Trois-Rivières Airport Pointe de l'Islet Pointe Claveau Sept-Îles Airport Kouchibouguac North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport La Pocatière Miscou Island Mont-Joli Airport
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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Pointe-des-Monts to Anticosti - southern half

Issued 3:00 PM EDT 20 September 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 20 September 2026 Tonight and Monday At 3:00 p.m. EDT today trough located on a line northeast-southwest
over western Lake Saint-Jean.
By 8:00 p.m. EDT Monday departing trough located on a line
northeast-southwest over Newfoundland.

At 3:00 p.m. EDT today high 1028 mb located over Ontario.
By 8:00 p.m. EDT Monday high 1036 mb located over Quebec.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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